Base | Representation |
---|---|
bin | 111111111110010001… |
… | …0011111101110011001 |
3 | 111010121022101011202122 |
4 | 1333330202133232121 |
5 | 4222324001344244 |
6 | 143040101111025 |
7 | 12632266163441 |
oct | 1777442375631 |
9 | 433538334678 |
10 | 137380887449 |
11 | 53298a25113 |
12 | 227606b8475 |
13 | cc55089860 |
14 | 6913853121 |
15 | 3890d181ee |
hex | 1ffc89fb99 |
137380887449 has 16 divisors (see below), whose sum is σ = 159704697600. Its totient is φ = 117116763456.
The previous prime is 137380887443. The next prime is 137380887451. The reversal of 137380887449 is 944788083731.
It is a cyclic number.
It is not a de Polignac number, because 137380887449 - 24 = 137380887433 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 137380887391 and 137380887400.
It is not an unprimeable number, because it can be changed into a prime (137380887443) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7913189 + ... + 7930530.
It is an arithmetic number, because the mean of its divisors is an integer number (9981543600).
Almost surely, 2137380887449 is an apocalyptic number.
It is an amenable number.
137380887449 is a deficient number, since it is larger than the sum of its proper divisors (22323810151).
137380887449 is a wasteful number, since it uses less digits than its factorization.
137380887449 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15843784.
The product of its (nonzero) digits is 32514048, while the sum is 62.
The spelling of 137380887449 in words is "one hundred thirty-seven billion, three hundred eighty million, eight hundred eighty-seven thousand, four hundred forty-nine".
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